Add skeleton specs for the bottom bar controller (introduced
to handle display of indicators introduced as extensions)
and the Couch indicator (introduced to exercise the above,
and to report connection status relative to the Couch
database.) WTD-608.
Hide dangling underscores; JSLint considers these a problem
and the command line build fails as a consequence when they
are present directly in the code, but CouchDB provides these
so we cannot avoid them entirely. So, hide them behind
variables and use []-style lookup.
Concludes transition work for the CouchDB persistence adapter,
WTD-537.
Fill in JSDoc for the CouchDB adapter which provides
the ability to persist domain object models. Part of
ongoing transition of the platform/persistence bundle,
WTD-537.
